Unfortunately the question it is. (sorry yoda) That is the rub with everything.
A sword can be used to protect as well as used to destroy. The blockchain tech used to empower will be liberating. Used to imprison it will be insidious.
Knowledge and discernment will always be more powerful.
If the internet is any guide, one can deduce some blockchain winners.
And humanity will continue to grind itself to pulp for the watchers.